And so: Azealia Banks is the rapper who appeals to Pitchfork readers; A$AP Rocky is the rapper who isn’t homophobic; Lana Del Rey is the lovely waif whose dad is loaded; M.I.A. is the stylish blowhard whose dad is a former Tamil revolutionary. Having learned these lines, you can go ahead and tweet confidently about these artists, holding your own in the great digital scrum, even if you have no idea what the artists actually sound like. If you get drawn into an argument, you can always quickly consult Wikipedia